﻿namespace Artemis.Core;

/// <summary>
///     An optional entry point for your plugin
/// </summary>
public abstract class PluginBootstrapper
{
    private Plugin? _plugin;

    /// <summary>
    ///     Called when the plugin is loaded
    /// </summary>
    /// <param name="plugin"></param>
    public virtual void OnPluginLoaded(Plugin plugin)
    {
    }

    /// <summary>
    ///     Called when the plugin is activated
    /// </summary>
    /// <param name="plugin">The plugin instance of your plugin</param>
    public virtual void OnPluginEnabled(Plugin plugin)
    {
    }

    /// <summary>
    ///     Called when the plugin is deactivated or when Artemis shuts down
    /// </summary>
    /// <param name="plugin">The plugin instance of your plugin</param>
    public virtual void OnPluginDisabled(Plugin plugin)
    {
    }

    /// <summary>
    ///     Adds the provided prerequisite to the plugin.
    /// </summary>
    /// <param name="prerequisite">The prerequisite to add</param>
    public void AddPluginPrerequisite(PluginPrerequisite prerequisite)
    {
        // TODO: We can keep track of them and add them after load, same goes for the others
        if (_plugin == null)
            throw new ArtemisPluginException("Cannot add plugin prerequisites before the plugin is loaded");

        if (!_plugin.Info.Prerequisites.Contains(prerequisite))
            _plugin.Info.Prerequisites.Add(prerequisite);
    }

    /// <summary>
    ///     Removes the provided prerequisite from the plugin.
    /// </summary>
    /// <param name="prerequisite">The prerequisite to remove</param>
    /// <returns>
    ///     <see langword="true" /> is successfully removed; otherwise <see langword="false" />. This method also returns
    ///     <see langword="false" /> if the prerequisite was not found.
    /// </returns>
    public bool RemovePluginPrerequisite(PluginPrerequisite prerequisite)
    {
        if (_plugin == null)
            throw new ArtemisPluginException("Cannot add plugin prerequisites before the plugin is loaded");

        return _plugin.Info.Prerequisites.Remove(prerequisite);
    }

    /// <summary>
    ///     Adds the provided prerequisite to the feature of type <typeparamref name="T" />.
    /// </summary>
    /// <param name="prerequisite">The prerequisite to add</param>
    public void AddFeaturePrerequisite<T>(PluginPrerequisite prerequisite) where T : PluginFeature
    {
        if (_plugin == null)
            throw new ArtemisPluginException("Cannot add feature prerequisites before the plugin is loaded");

        PluginFeatureInfo info = _plugin.GetFeatureInfo<T>();
        if (!info.Prerequisites.Contains(prerequisite))
            info.Prerequisites.Add(prerequisite);
    }

    /// <summary>
    ///     Removes the provided prerequisite from the feature of type <typeparamref name="T" />.
    /// </summary>
    /// <param name="prerequisite">The prerequisite to remove</param>
    /// <returns>
    ///     <see langword="true" /> is successfully removed; otherwise <see langword="false" />. This method also returns
    ///     <see langword="false" /> if the prerequisite was not found.
    /// </returns>
    public bool RemoveFeaturePrerequisite<T>(PluginPrerequisite prerequisite) where T : PluginFeature
    {
        if (_plugin == null)
            throw new ArtemisPluginException("Cannot add feature prerequisites before the plugin is loaded");

        return _plugin.GetFeatureInfo<T>().Prerequisites.Remove(prerequisite);
    }

    internal void InternalOnPluginLoaded(Plugin plugin)
    {
        _plugin = plugin;
        OnPluginLoaded(plugin);
    }
}